On Wed, 23 Nov 2011, [ISO-8859-1] G�rkan Seng�n wrote:
> would be interested to see it in main, not just in "contrib".

Everyone would like to see the Ubuntu Font Family in 'main'.
At this point in time, 'main' is sadly not an option because:

  (a) UFF comes with complete source [not just .ttfs], and

  (b) UFF requires a build-system that is not wholly in 'main'.

> then it's contrib only...

Uploading to 'contrib' would be the logical destination.  I don't
think there's anything blocking that?  I'm happy to /help/ via
pkg-fonts—but because I've been working closely on the Ubuntu Font
Family and I am presented employed by Canonical I don't want to be
seen to be actively forcing anything.  From a Debian-perspective I
absolutely want to see it in Debian and moving up the repos whenever
possible.

> to make the font really free?

The full source code for the typeface is there, and everyone is free
to modify, share, remix and improve it without any requirement to ask
permission first or the possibility to be denied.

(It is perfectly okay for the FTP masters to have found this to be
non-DFSG free, that is the FTP masters' viewpoint).

> what do you think are the chances for Ubuntu/Canonical

At the point that a better libre font licence comes along, the Ubuntu
Font Family can be relicensed.  All of the necessary legal permissions
to quickly perform such a relicensing are (intentionally) in-place:

  http://font.ubuntu.com/ufl/FAQ.html

I think it's been consistently stated, that the Ubuntu Font
Licence-1.0 is being used as an *interim licence* solution.  There are
likely to be further revisions of the UFL, and also to other libre
font licences, as the community and understanding of open font
production expands.

> They (Canonical, Ubuntu) after all mention the differences between
> free software and other software.

Font Software licensing has some unique requirements not found in
other general-purpose software-, or content-licences (where GPL and
CC-BY-SA are already clearly the preferred). There is a necessarity to
allow embeding of the font in documents, without causing those
documents to come under the same licensing conditions as the font.

A font that cannot be /used/ by target users is not much use.  
Various of the available font licences try to cover the font-specific
criteria in several ways:

  http://font.ubuntu.com/ufl/FAQ.html#embedding

For instance, the GPL+Font Exception approaches this via:

  "As a special exception, if you create a document … this font does
   not by itself cause the resulting document to be covered by the GNU
   General Public License"

The second aspect is that a font-name field is a "well-known
identifier/key" linking to a particular set of metrics (this is
partially why we have the Liberation Fonts that Red Hat kindly
sponsored).  For instance, the SIL OFL approaches this via a
"Reserved Name" method:

  "No Modified Version of the Font Software may use the Reserved Font
   Name(s) unless explicit written permission is granted"

There was a keen desire to a find a way to incorporate both of the
above aspects, and others, into a leen "single-page" licence, in a way
that did have the burden on seeking prior permission.  Nor was likely
to be overly scary to existing font foundries.

As of 18 months ago, no out-of-the-box, font-specific, widely-used
licence was available. Canonical set about sponsoring various work in
the area.  The 'Ubuntu' in the UFL name is there to discourage its use
until it's been debugged.

The list of open bugs/comments for the UFL-1.0 is visible at:

  https://launchpad.net/ubuntu-font-licence/+bugs

The UFL-1.0 can't be changed, but work and advice is greatly sought
for feeding into an UFL-1.1 and onwards; or functional equivalent.

In the mean-time, the UFL-1.0 came about by looking for the closest
starting point (SIL OFL 1.1) and making the minimum number of changes.  
For convenience, a colourful diff is available at:

  http://font.ubuntu.com/ufl/ofl-1.1-ufl-1.0.diff.html

Yes, future relicensing is not only an option, but an intention.

Yes, the meantime, I think 'contrib' would be a wondeful home.

        -Paul


PS. I had another chat with Zack in Orlando about other methods of
meeting a permissive, well-known name/Reserved Name criteria;
Zack has been working issues around the DFSG and trademark
compatibility, which may open up some options:

  http://www.debian-news.net/2011/11/12/bits-from-the-dpl-for-october-2011/
  http://lists.debian.org/debian-project/2011/10/msg00028.html





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